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JPL Small-Body Database Browser
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172130 (2002 JC21)
Classification: Main-belt Asteroid          SPK-ID: 2172130
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07662504102321249 3.9049e-08  
a 2.415456954966931 1.2104e-08 au
q 2.230372466702786 9.682e-08 au
i 5.913273887917711 3.9591e-06 deg
node 252.2849323420983 4.5487e-05 deg
peri 41.07512235947448 5.5301e-05 deg
M 231.6085374456696 3.3593e-05 deg
tp 2459489.524959646925
(2021-Oct-02.02495965)
0.00012953 TDB
period 1371.189189455612
3.75
1.0307e-05
2.822e-08
d
yr
n .2625458272048708 1.9734e-09 deg/d
Q 2.600541443231076 1.3031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      7979 days (21.85 yr)  
   first obs. used      1998-04-01  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57368  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:44:09  

Additional Information
 Earth MOID = 1.21804 au 
 Jupiter MOID = 2.51376 au 
 T_jup = 3.506 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO412966  

172130 (2002 JC21)          Discovered 2002-May-08 by NEAT at Haleakala
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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